Nut-lock.



W. E. GIFPORD.

' NUT LOOK.

APPLICATION- FILED 1220.29, 1908.

Patented Mar. 23, 1909.

Tu: NORRIS PETERS co., wAr-Hmwqp n, c

i STATES PAT-EN T ()I F-lOE.

WILLIS-.151. GIFFORD, OF FAIRFIELD, MAINEASSIGNOR O1 ONE-FOURTH TO LEON V. MAKE AND ONE-FOURTH TO MARK P. EMERY, BOTH OF FAIRFIELD, MAINE.

NUT-LOCK.

Specification of Letters Patent.

Patented. March 28, 1909.

- Application filed December:29 ,1908. Serial No'.-469;862.

4 To, all I whom it I may concern:

l=BQzltkIWIlthLi3 1,. WILLIS, E; .Girrom), a citizen of the United States, residing at 'fiFairfielcL-iin :the county of Somerset and ...'-5 State ofiMaine have inventedcertain new anduseful Improvements :in Nut-Locks, of "which the following is aspeeifioation.

t My: present. invention pertains to improverments'l in nut locks, the construction and a. 10 .zadvantagesotwhieh will vbehereinafter set forth reference being had to :the a ccom pa-nysing: drawings, wherein .Figurez lis a longitudinal sectional view of the lock; and Fig. 2 a sectional elevai-.tion,of-the nuts,sshown in; their separated #position.

iTheobject of the present invention is to produce a nut-lock which will be locked in bothdirections .withreference to the bolt, ezozanle-skein or= thelike :upon -which it is imountede and, at the same time c be perfectly gilCljHSlrflblG, soithat the parts may be brought topropempositionwith relation to the member whichdsto beheld thereby.

the useot' vehicles,'1nore particularly unotor'vehioles, it is essential that the nut or member which contacts with the rotary :inember, asfor instance, the hub of a wheel, 'should ebe held. against motion in either di- 530 erection, -;and where cup-raeesnor similar forms of bearings are employed it is essen tialt-hatithe adjustment of the parts should be-- so fine as to-takelup anylost motion and yetat thesame time not cramp the parts. 1 .35 lill-lel-oek shown in the present case-is susaeeptible "of being brought to any desired adjustment "with reference to: the member izagainstwhioh it bears and then locked in -pl acei against movement in eitherdirection. i :Referring to the drawings, 1 denotes an ,aXle-skein-or siniilarniember-which is pro widedwith right andleft-handed threads at .oneend.

= 2 :designates a cap nut, provided with @415. right handed-. threads to engage said threaded portion of thelmeniber 1. The sleeved :portion 3.0f said nut is provided on its inner v:liace with, internal threads. which are letti-handed. Said cap-nut is designed to be threaded lupon lthe; axle-skeinand brought to'ithedesired adjusted position. A nut 4t rot arr outer diameter less than the opening faces of the-nut 8.

vided witha series of right-handed threads 'tornied uponiits inner lace, is next threaded upon the skein. and brought. homeagainst the outer .tace oi thenut -il-. As wlll be seen upon reterence to Fig. 2, the nut' 5 1s pro- I vided withlan external threadless section 6,

and, at its inner end-,.with aseries of threads 7. upon which is. passed a ring, or nut 8,

carrying a .spring-arin' 9,-1said arm having fingers 10 and 11. which. engage. the side A slot or way 12 is iormed in the out-er t'ace 'ot' the nut. 5 for the reception of said spring-arm S), and a hook 123, formed upon the outer end of said The slot or way 12 isot' sufficient depth.to.permit the hookto lie flush with the outer face-of the sleeved section (5 of the -nut. 5, so that an outer clamping nut or ring 14 may be passed over said sleeve. The nut 14 is provided with an EXl'OlllilllY illll'fifltlGd seeticm 15, the :threads being left-handed threads and adapted: to' engage the left handeeht-hreads in thesleeved portion 3.

' By adjusting the nut 8 upon the threads .7

the hook 1 may be brought tot-he proper position to pass upward. out ott'the slot or way 12,- and engage a shoulder 17 formed upon thenut 14- when said nut is screwed home. The nut ll cannot then be backed olt of or away from the cap'nut 2 unless the spring hook 153 is pushed inwardly by. a suitable tool. while at the same time the nut 14 is backed.

The parts are so proportioned vthat the inner end of the threaded section 15 will contact with a shoulder '18 formed upon the nut 5 at the point of meeting of the threaded section 7 and the section (3, when the nut 14 is fully turned up.

The threaded section 15 will be of such length that the shoulder 1(3 of the nut 1-} will not contact with theend otthe sleeve 3 when the parts are finally clamped. in other words. a clearance isleit in order to allow for wear of the parts.

; it. will thus be seen that the nut 2 cannot .be turned in either direction, and-zit it be employed in conjunction with a wheel or a member having rotary motion about the n1e1n her 1, cannot be moved in either direction through the friction of the rotary member. It cannot be turned backward by reason of the fact that the nut labuts squarely against the same and it cannot be turned in the opposite direction by reason of the fact that the nut- 14 is coupled thereto by a left-hand thread formed upon the sleeved portion 3, and said nut 14 is held positively against inward movement by reason of abutting a gainst the shoulder 18 upon the nut 5.

Where the device is to be used in a hub or the like, each of the nuts will preferably be provided with recesses 19 for the recept on of a proper wrench or other tool by which the nuts may be turned, as is usual in constructions of this character.

Having thus described my invention, what I claim is:

1. In combination with a supporting member provided with right and left-handed threads, a nut adapted to bear against the member to be clamped or held in position, said nut having a threaded engagement with said supporting member; a nut also mounted upon the supporting member, said nut be ing reversely threaded and bearing against the first-named nut; a third nut threaded in a manner similar to the first nut, said nut bearing against the second nut; and a fourth nut having a threaded engagement with the first nut, said threads having a direction the reverse of those between the first nut and the supporting member, said fourth nut abutting against the thirdanentioned nut and holding the same against movement.

2. In combination with a supporting member provided with intersecting right and left-hand threads; a nut adapted to bear against the member to be held, said nut hav ing a threaded engagement with the sup porting member; a second nut mounted upon the supportingmember, said nut being threa ded the reverse of the first nut and bearing directly against the same; a third nut mount ed upon the supporting member, and being threaded in the same direction as the first nut and serving to lock the second nut in place; a fourth nut having a threaded engagement with the first nut and bearing against the third nut; and means for preventing retrograde movement of said last mentioned nut.

3. In combination with a supporting member provided with intersecting right and left-hand threads; a nut adapted to bear against the member to be held, said nut having a threaded engagement with the supporting member; a second nut mounted upon the supporting member, said nut being threaded the reverse of the first nut and bearing directly against the same; a third nut mounted upon the supporting member and being threaded in the same direction as the first nut and serving to lock the second nut in place; a fourth nut having a threaded engagement with the first nut and bearing against the third nut; and adjustable means for preventing retrograde movement of said last-mentioned nut.

4:. In combination with a supporting member provided with intersecting right and left-hand threads; a nut adapted to bear against the member to be held, said nut having a threaded engagement with the supporting member; asecond reverselythreaded nut mounted upon the supporting member, and bearing against the first nut; a third nut threaded similarly to the first nut and bearing against the second nut; a spring catch adjustably mounted upon the third nut and standing in line with a recess formed in the outer face of said third nut; and a fourth nut having a threaded engagement with the first nut, said fourth nut likewise bearing against the third nut and being engaged by the catch.

In combination with a supporting member provided with intersecting right and left-hand threads; a nut having righthand threads engaging said member, said nut being formed with a sleeve having lefthand threads thereon; a second nut having left-hand threads, said nut being mounted upon the supporting member within the sleeved portion of the first nut and bearing against the body thereof; a third nut, said nut being formed internally with righthand threads and likewise upon its outer face with a threaded section; a nut mounted upon said section; a spring catch in engagement with said last-mentioned nut and standing in line with a slot formed in the outer face of the third nut; and a locknut having a threaded section adapted to engage the lefthand threads of the sleeve section of the first nut and to abut against a shoulder formed by the external threaded section of the third nut, said lock nut when brought home being engaged by the catch.

6. In a nut-lock, the combination of a supporting member having right and left.- hand threads; a nut mounted thereon; a locking nut connected to said first nut by a thread the reverse of that by which said first nut is connected to the supporting member; and a pair of nuts interposed between said first nut and the locking nut, said nuts being reversely threaded.

T. In a nut-lock, the combination of a supporting member having right and lefthand threads; a. nut mounted thereon; a locking nut connected to the first nut by a thread the reverse of that by which said first nut is connected to the supporting member; a pair of nuts interposed between the first nut and the locking nut, the nuts of name to this specification in the presence ui' said pair being I'GV'BI'SGIY threaded; and a two SllhSCl'lblllg \vitnesees.

eatch extending outwardly from one 9f said VILLIS E GIFFORD. inner nuts into locking engagement with the 5 locking nut when said latter nut is brought W'itnesses:

to its final adjusted position. HORACE A. DODGE,

In testimony whereof I have signed niy PERCY I-I. RUSSELL. 

